1780% is the change from 45 to 846
Calculation steps:
[( 846 - 45 ) ÷ 45] x 100 = 1780%
Formula
Percentage change = [(846 - 45) / 45] x 100
Subtract the new number by the original number
846 - 45 = 801
801 ÷ 45 = 17.8
17.8 x 100 = 1780%
Example